Office



ironia mom t Mai/MMM? UNITEDSTATESMENT @FICE- MJosErniRoDErERgor eINcrNNArLoHIo.

BEnsTEADsrAs'rENING.

specificationfforminiiirt.of Lttersratent No. 212,693, dated April io, 1855; Reissues Jene 2o,

fity of"`pa`rt`s` alllth ing of circularf ventednewl` andfuseful Improvements `1n j Bedetead-Fastenings; 1and I` do hereby `declare 1 the J following fto `:bei` a" full,` clear, and

\ nd the latter being all eXpcavated` byfmea'nszpof rotary cutters.

Strong" attachmentfjto l the rail (independent "of" wood screws)"and` capacity `for adjustment after attachmennyof my ring tenon -`In the accompanying drawings, Figure l lHnisja" side View offmycircularjring tenon in position wrtlnn the r`a1l.\y Fig. 2 1s a sideV view of another modification of the circular `profile tenon," witha` different form of at-` tachment. Fig. 3k ,is"a verticall` section QMthI-ugh fthe postsofas to exhibit `the Inortise, and catohpin."Fig` LLis an `end view` of thetenon plate, represented" in profile in j ringweg.` j i.

j (@represents theirail and (b) Ithe post. j

(c) isa peculiarlyconstructed ironntenon consisting cfa circularring havinga gap vor interval (d) at one part,weXposing two separated ends, j one "end being. chamfered at `its inner edge, so"a`s3to"form ahook (e), and the otherend `0); so formed as` to permit the passage of the catch, pin in the post, and after insertion `of the pin, to present an additional shoulder `against the post mortise so .f astocresist lanyforce tending to turn the rail in thefpost. nThisringis secured to its place in the rail `by beingvpressed into an annular mortise excavated byrneansof a rotary cut'- tenons and mortises beasaw kerf in the rail.

screws (m) keep the anchor within its 187i, No. 4,432. 1

drop over and upon a pin (g)` so inserted into the post as to stand athwart a mortise `After the ring is inserted, it can be adjusted precisely to its proper position, by a sharp tapfeither against the point of the "hook (e) or against the other extremity (f) the blow beinggiven inone or the other direction as circumstances may require, and always in a direction tangential to thecircle. After the ring is in position, a small batten of wood maybe glued and screwed fast upon it; to prevent lateral displacement.' This arrangement is characterized by'remarkable simplicity strength and compact-ness of form and rapidity j of construction and the greatest amount of metal Where the most surface is wanted, for stability.

' At Fig. 2 another plan of attachment is represented `adapted for very thin rails.

The semicircular form of tenon is retained.

(k) `1s a flange sustained by ia semicircular (ha), formed by means of a rotary cutter or saw. j

or other circular curvedanchor (Z) let into A couple of Wood socket. n

I claim,

As herein formed and applied the circularsplit ring, let into a segmental annularmortise in the rail, from which its upper end projects in the form 4of a hook, and its lower end in form substantially as described permitting the passage of the catch pin in the act of insertion affording an additional Go. -H. KNIGHT, THos." W.` SCOTT.

IFIRST InTED 1913.] 

